User Manual

STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft Page 203 of 500
AGC Specification (both types)
PARAMETER SPECIFICATION
Frequency range up to 1000MHz
Attenuation range 3 to 30dB
Attenuation steps continuously variable
VSWR better than 1.2:1
RF Connectors SMA female
attenuator 1W Power
handling
detector/amp >30W (or as required)
operation -10°C to +60°C Temperature
range
storage -20°C to +70°C
attenuator pcb 50 x 42 x 21mm
Size
detector/amp pcb 54 x 42 x 21mm
attenuator 90grams
Weight
detector/amp 100grams
11.4.3.11. 12V (Dual) Relay Board (20-001601)
The General Purpose Relay Board allows the inversion of signals and the isolation of circuits. It is
equipped with two dual pole change-over relays with completely isolated wiring, accessed via screw
terminals. Both relays are provided with polarity protection diodes and diodes for suppressing the
transients caused by "flywheel effect" which can destroy switching transistors or induce spikes on
neighbouring circuits. It’s common use is to amalgamate all the alarm signals into one, volts-free relay
contact pair for the main alarm system.
20-001601 Specification
PARAMETER SPECIFICATION
Operating voltage: 8 to 30V (floating earth)
Alarm threshold: Vcc - 1.20 volt +15%
Alarm output relay contacts:
Max. switch current: 1.0Amp
Max. switch volts: 120Vdc/60VA
Max. switch power: 24W/60VA
Min. switch load: 10.0µA/10.0mV
Relay isolation: 1.5kV
Mechanical life:
>2x10
7
operations
Relay approval: BT type 56
Connector details: Screw terminals
operational: -10°C to +60°C Temperature
range
storage: -20°C to +70°C